The Moon

Our Moon, inspiration for countless songs, poems, paintings and our stepping stone to space exploration.
The Moon is 384,403 kilometers (238,857 miles) distant from the Earth. Its diameter is 3,476 kilometers (2,160 miles). Both the rotation of the Moon and its revolution around Earth takes 27 days, 7 hours, and 43 minutes. This synchronous rotation is caused by an unsymmetrical distribution of mass in the Moon, which has allowed Earth's gravity to keep one lunar hemisphere permanently turned toward Earth.

Examples:

2005 Harvest Moon

2006 Astronomy Day Moon